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Mastodon's flagship server was targeted by a DDoS attack, leading to periods of unavailability and error messages.

CybersecuritySocial IssuesCultureDdos AttacksApr 20, 2026score 0.433 posts · 2 replies across 2 instances
The thread discusses a DDoS attack on Mastodon's flagship server, which caused outages and inaccessibility. It also mentions a similar attack on Bluesky, highlighting ongoing security challenges for decentralized social networks.

Claims

Mastodon's flagship server was targeted by a DDoS attack, leading to periods of unavailability and error messages.
Parent: CybersecurityEntity: MastodonImpact: negativeDate: Apr 20, 2026 - Apr 22, 2026Target: Mastodon's ability to protect its servers from DDoS attacks

Source posts

@[email protected]
News: Techcrunch | Mastodon says its flagship server was hit by a DDoS attack "The millions of malicious requests it has seen are consistent with the pattern of a distributed Denial of Service attack." The attack was mitigated within 2 hours. “This is a case where the decentralized nature of the Fediverse is a true advantage... Users with accounts on other Mastodon (or any other Fediverse) servers were completely unaffected... " https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/ #Mastodn #DDoS
23 boosts · 20 favs · 2 replies · Apr 20, 2026
#mastodn#ddos
@[email protected]
I missed this Mastodon says its flagship server was hit by a DDoS attack | TechCrunch https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/
7 boosts · 9 favs · 5 replies · Apr 21, 2026
@[email protected]
Mastodon’s primary server "mastodon.social" hit by DDoS attack on April 20, their tech team quickly deployed countermeasures restoring access to the site within a couple of hours. https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/ #SocialMedia #Mastadon #DDoS #Malware #Hackers #Software #CyberAttack #Security #CyberSecurity
0 boosts · 1 favs · 0 replies · Apr 21, 2026
#socialmedia#mastadon#ddos#malware#hackers#software
@[email protected]
„Mastodon’s flagship server was hit by a distributed denial-of-service attack on Monday, the social networking software maker said, which rendered the instance unusable at times. Much of the site was inaccessible, throwing error messages or displaying a full-screen outage warning.“ https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/
0 boosts · 0 favs · 0 replies · Apr 20, 2026
@[email protected]
"Mastodon says its flagship server was hit by a DDoS attack" "The DDoS attack against Mastodon's flagship server comes less than a week after Bluesky was targeted with junk web traffic." https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/ #Mastodon
2 boosts · 0 favs · 1 replies · Apr 20, 2026
#mastodon
@[email protected]
Mastodon says its flagship server was hit by a DDoS attack. The incident comes less than a week after Bluesky was targeted with junk web traffic. #Media #CommunityPlatforms #Mastodon https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/
0 boosts · 0 favs · 0 replies · Apr 20, 2026
#media#communityplatforms#mastodon
@[email protected]
Mastodon says its flagship server was hit by a DDoS attack https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/
0 boosts · 0 favs · 0 replies · Apr 20, 2026
@[email protected]
#Mastodon #DDoS "Similarly, the attack on Mastodon has so far targeted only the larger server (mastodon.social) and not the many smaller instances that make up the full Mastodon social network. " Mastodon says its flagship server was hit by a DDoS attack | TechCrunch https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/
0 boosts · 0 favs · 0 replies · Apr 21, 2026
#mastodon#ddos
@[email protected]
Mastodon was hit by a 'major' DDoS attack that briefly took down parts of the service https://www.engadget.com/social-media/mastodon-was-hit-by-a-major-ddos-attack-that-briefly-took-down-parts-of-the-service-204823221.html
0 boosts · 0 favs · 0 replies · Apr 21, 2026
@[email protected]
Mastodon was hit by a 'major' DDoS attack that briefly took down parts of the service https://www.engadget.com/social-media/mastodon-was-hit-by-a-major-ddos-attack-that-briefly-took-down-parts-of-the-service-204823221.html?utm_source=flipboard&utm_medium=activitypub Posted into The Fediverse @the-fediverse-tech
2 boosts · 0 favs · 0 replies · Apr 21, 2026
@[email protected]
Mastodon says its flagship server was hit by a DDoS attack | TechCrunch https://www.macken.xyz/2026/04/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack-techcrunch/?utm_source=dlvr.it&utm_medium=mastodon
0 boosts · 0 favs · 0 replies · Apr 21, 2026
@[email protected]
Mastodon says its flagship server was hit by a DDoS attack https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/
1 boosts · 0 favs · 0 replies · Apr 21, 2026
@[email protected]
Mastodon’s flagship server hit by DDoS. Only one instance affected. Network stayed up. Decentralization showing its value. https://www.technadu.com/mastodon-ddos-attack-disrupts-flagship-server-temporarily/626609/ #Infosec #DDoS #Mastodon
3 boosts · 0 favs · 0 replies · Apr 21, 2026
#infosec#ddos#mastodon
@[email protected]
#Mastodon says its flagship server was hit by a #DDoS attack https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/ #cybersecurity #FOSS
0 boosts · 0 favs · 0 replies · Apr 22, 2026
#mastodon#ddos#cybersecurity#foss
@[email protected]
Mastodon says its flagship server was hit by a DDoS attack https://techcrunch.com/2026/04/20/mastodon-says-its-flagship-server-was-hit-by-a-ddos-attack/
1 boosts · 0 favs · 0 replies · Apr 20, 2026